package com.lzh.exer;

public class ArrayExer1 {

	public static void main(String[] args) {

		int[][] arr = new int[][] { { 3, 5, 8 }, { 12, 9 }, { 7, 0, 6, 4 } };

		int sum = 0;
		for (int i = 0; i < arr.length; i++) {
			for (int j = 0; j < arr[i].length; j++) {
				sum += arr[i][j];
			}
		}
		System.out.println(sum);
	}
}
